Debt-to-Income Ratio Calculator
Calculate debt-to-income ratio from monthly debt payments and gross monthly income.
- Last reviewed
- July 8, 2026
- Cost
- Free to use
- Data
- Runs in your browser
Debt-to-Income Ratio Calculator
Methodology
How this calculator handles inputs
This calculator uses the values you enter above and applies the formula explained in the guide below. Results update in the browser and are intended for quick planning, comparison, and sanity-checking.
- Use consistent periods, currencies, and units across inputs.
- Review any assumptions before using the result in a decision.
- Recalculate when rates, prices, tax rules, or business terms change.
Important note
This tool provides general planning information only. It is not tax, legal, financial, accounting, or investment advice. Check the current rules for your location and speak with a qualified professional before making a high-stakes decision.
Guide
How it works
Use this calculator to estimate your debt-to-income ratio, often called DTI. It compares monthly debt payments with gross monthly income and helps show how much of your income is already committed to debt.
What this calculator does
The debt-to-income ratio calculator measures debt load against income.
It uses:
- gross monthly income
- monthly debt payments
- percentage calculation
- DTI rating label
The result shows your DTI percentage and a simple rating of low, moderate, high, or very high.
How to use the debt-to-income ratio calculator
Enter your gross monthly income before tax and your monthly debt payments. Include debts such as loans, credit cards, car payments, student loans, and mortgage payments where relevant.
Use the result as a planning signal, not a lender decision.
Debt-to-Income Ratio Formula
DTI ratio = monthly debt payments / gross monthly income x 100
The result is shown as a percentage.
Example calculation
If:
- Gross monthly income = 6,000
- Monthly debt payments = 1,800
- Calculation = 1,800 / 6,000
- Percentage factor = 100
Then:
DTI ratio = 1,800 / 6,000 x 100 = 30%
The DTI ratio is 30.00%.
What is debt-to-income ratio?
Debt-to-income ratio is the percentage of gross monthly income used for monthly debt payments. Lenders often review it when assessing borrowing capacity.
A lower DTI generally means more room in the budget for new payments.
Interpreting your result
A high DTI can signal repayment stress or limited borrowing capacity. A low DTI may support affordability, but lenders also consider credit, assets, expenses, and loan type.
When to use this calculator
Use this calculator when you want to:
- check debt pressure
- prepare for borrowing
- review affordability
- track debt reduction
Common mistakes
Common mistakes include:
- using net income
- excluding recurring debts
- counting normal bills as debts
- assuming DTI guarantees approval
FAQs
Should I use gross or net income?
DTI is commonly calculated using gross monthly income.
What debts should I include?
Include recurring debt payments such as loans, cards, and mortgages.
Is lower DTI better?
Usually yes, because less income is committed to debt.
Is this financial advice?
No. It is a planning estimate only.
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